Thbtjst-bsabistg fob rotating shaits



GEORGE A. S'FNI. Hl"

THRUST-BEARING n'OR ROTATING SHATS.

Specification of Lettera Pafcnt Nn. 25.

ragt lo the vfrssvl. '.lhnw vrriflinrs rm by frivlinn fit Snemlg libs llvin than nl shnl'f and wmilil he nnnhjeclimmhlv www i?, not for the diflimilty m lnbrimling lhn rml l l i 4 l i l l l l l i l l l i slippmlon lu ills Uz. dmail Ocnbe-r 1859.

are secured in place; the collars being in .such a ease iiot inade in one piect` with the shaft. but secured thereto by shrinking on l ot' in any other proper way.

Vvheii the shaft is revolved the collars or sonic ot' thein will commence to revolve with it and as they revolve the grooves will lift oil or other lubricating material troni the reservoir1r and the oil thus lifted will run down the grooves and its passage lubricate the adjacent faces of the washers and when the oil arrives aty the shaft it will till the grooves It, Ii., which extend along the inner edges of the washers from one face thereof to the other thus lubricating the shaft itself and permittingv the vashers to revolve freely thereon or niore properly speaking permitting the shaft to revolve at greater speed than the collars without any tendency ot' heating up As the grooves g If] descend on the other side of the shaft all oil not needed will drop out into the reservoir and each groote will tulo? a fresh charge of oil as it in on the oon/)site side of the shaft.

lt ses play et' the shaft will be counterth ihr hearing: against the next ii .succession until the he pillow lloe.

fifi' the grooves Ats the y. ei rit/iii "u 'it any torni that fancy tnay preter No ik :'i they are combined, with a 'reservoir o' ach capacity tl :it the faces it the coilaz:` will he thoroughly lubricated ht intzim ot oit taen tioni the reservoir. lo faule:- to hihrieate between the collar` and the nevi' adir-ent washer l have, cut grooves in th-tiaees tft' the collars thetiiselves iuiilai' iii all respects to the grooves in the washers or rings such giooves being shown plainly in Fig, 3.

yl`hc grooves from the outer edge to the inner edge of the washers, will serve a good purpostA when grooves such as ,71, i are not used, but the best result will be obtains-d when they are eu'iployed it", conihiiiatit :i with When the :lint't ie blot-li i `aihsciilietl inv naine iii the city ot Boston grooves sach as t7 y. volves in water and the collars pi low and vashcis are iniinersed wholly or tiall;v dispensed with, water be it an artificial oiistiuetioii or a natural basin such as the channel ot' a river or the bed ot the ocean will then bet-ome the reservoir for holding' the liilit'icator which which will hear against its of the ui--e of a shaliowe .e gjm-ti :nav he cut in the in water` a special reservoir may lie as whatever contains the in such cases will be waterrand experience has proved that that fluid acts well as a lubricator. This remark as to a, reservoir applies also to the arrangement for vertical shafts now to be described.

In Figs. 5 and 6 the same lette 's refer to the same parts that they do in the other figures. The step of thcshaft here takes the place of the pillow block and being rolonged forms the reservoir; the collar notl project from the shaft, but the shaft is turned off or made smaller where it enters the washers and the washers are made to tit closely to the inside of the step. They need not necessarily do so, but when they are so inade they preventl the Shaft from inovinfir out of line and thus obviate the necessity o? making some special provision for that purpose. dien the collars lill u the step they should he provided with additional grooves along their outer edges, which will serve to conduct oil to lubricate between the collars and the inside of the step. These collars will transfer the strain to the bottom of the step as those shown in the other figures transfer it to the pillow blocks and the lgrooves perforni the saine duty ot' lubricating between the faces ot the collars and between the inner edges of the collars and the shaft,

llavinp; thus described iny improvement I eniini as ot' in v own iiiieiition.

l. The combination of these four thingsI naniely a collar or collars on the shaft; washers provided with grooves on their fat-es extending i'roni their outer to their inner edges' inade substantially as described; a reservoiiuof oil or other lubricating material. and a pillow block or stationary re- --istan fe. all being' and acting in combination sulhtantially as hereiiibefore described for the purposes set forth, and-- 2. VIn combination with washers provided with grooves on their faces` a reservoir of lubricating material a pillow block or its etpiivalent` and a follar on a shaft all as speeitied in iny iiist claim. I claiin groovesl i extendingr troni tace to face of the washers on this lltli day 'it September, A, l). i559. GEORG l'l STGR E.

ln presence ofwliiNJ. F. Cooiii, .lso li. lltiN'riif. 

